Safety caps for containers

ABSTRACT

A safety cap assembly for containers of fluids with danger potential, including a cap with thumb piece lift normally blocked by a shoulder immediately thereunder, and an annular rim blocking frontal access, with means for manual temporary removal of said blockades.

United States Patent Inventor Appl. No. Filed Patented SAFETY CAPS FORCONTAINERS 2 Claims, 4 Drawing F lgs.

U.S. Cl 220/60, 220/35, 215/9 Int. Cl ..B65d,43/10 B65d 43/6, B65d 51/16Field ofSearch 215/9,95, 41; 220/60, 35

[56] References Cited UNITED STATES PATENTS 3,393,816 7/1968 Frimm 215/93,458,084 7/1969 Laurizio 220/35 Primary Examiner-George T. HallAtt0rneyGerald P. Welch ABSTRACT: A safety cap assembly for containersof fluids with danger potential, including a cap-with thumb piece liftnormally blocked by a shoulder immediately thereunder, and an annularrim blocking frontal access, with means for manual temporary removal ofsaid blockades.

PATENTEUJUM Sign 3,584..

BY fl? ATTORNEY SAFETY CAPS FOR CONTAINERS A number of containers whichmay be used in the home contain toxic preparations dangerous tochildren, and the cap presently in wide use on such containers may beopened with impunity by a relatively young child. It is an object of thepresent invention to'environ such a cap with a dual safeguard which willeffectively prevent a young child from gaining access to the contents ofa container.

SUMMARY OF THE INVENTION BRIEF DESCRIPTION OF TI-IE DRAWING FIG. i is aperspective view from above of the upper portion of a container equippedwith a safety cap assembly embodying the invention. I

FIG. 2 is a vertical sectional view.

FIG. 3 is a view taken on line 3-3 of FIG. 2.

FIG. 4 is a plan view in elevation.

DESCRIPTION OF THE PREFERRED EMBODIMENT A conventional container Iprovided with a top central aperture at 11 permits the insertion andretention of the base portion 12 provided with a tapered portion at 13and the annular external groove 14 to engage within said aperture 11.Integral with the base 12 is a slightly reduced neck 15 provided with anexternal tapered portion at 16 presenting a, bottom shoulder 17 toretain a ring member 17a provided with an inner flange at 18 and anupstanding vertical flange at 19 provided with a notch at 20 therein, topermit access of the thumb or finger under the thumbpiece 21 of the cap22, said notch extending downwardly through the ring 17a as shown.

The base 12 and the ring member 17a have facing and registeringhalf-round grooves containing a normally elongated spiral spring. Whenthe ring 17a is rotated to compress the spring until the notch thereinunderlies the thumbpiece 21, lifting of the cap 22 by manual means mayeffected.

Having thus described the invention, what I claim and desire to besecured by Letters Patent of the United States, is:

1. A safety cap assembly of resilient construction including a basehaving an integral neck, a cap for said neck, a tie element connectingthe base and said cap, a ring element freely rotatable surmounting saidbase, a circular shoulder and upstanding flange on the ring elementnormally blocking manual access to said cap, said ring element having anotch through the shoulder and the flange thereof, and spring means forreturning the notched portion of said ring to a nonaccess positionrelative to said cap.

2. A safety cap assembly as in claim I, and a half round groove in theunderside of the rotatable ring element registering with and facing ahalf-round groove in the base portion, both grooves being half a circlein length, a coil spring normally held within the grooves from end toend which when compressed will turn the ring element to normal positionblocking manual access to the cap.

1. A safety cap assembly of resilient construction including a basehaving an integral neck, a cap for said neck, a tie element connectingthe base and said cap, a ring element freely rotatable surmounting saidbase, a circular shoulder and upstanding flange on the ring elementnormally blocking manual access to said cap, said ring element having anotch through the shoulder and the flange thereof, and spring means forreturning the notched portion of said ring to a nonaccess positionrelative to said cap.
 2. A safety cap assembly as in claim 1, and a halfround groove in the underside of the rotatable ring element registeringwith and facing a half-round groove in the base portion, both groovesbeing half a circle in length, a coil spring normally held within thegrooves from end to end which when compressed will turn the ring elementto normal position blocking manual access to the cap.